#sucker  mostly North American freshwater fishes with a thick-lipped mouth for feeding by suction; related to carps
  supertype:  catostomid  a cypriniform fish of the family Catostomidae
  part:  sucker.freshwater_fish
  member of:  family_Catostomidae
  subtype:  buffalo_fish__buffalofish__buffalofish  any of several large suckers of the Mississippi valley
     subtype:  black_buffalo__blackbuffalo__Ictiobus_niger  fish of the lower Mississippi
  subtype:  hog_sucker__hogsucker__hog_molly__hogmolly__Hypentelium_nigricans  widely distributed in warm clear shallow streams
  subtype:  redhorse_sucker__redhorse  North American sucker with reddish fins

No statement uses or specializes sucker; click here to add one.